Fix: handle other selection types in comparator [173726948]

[678098]

We use comparator here:

blazingmq/src/groups/mqb/mqbcmd/mqbcmd_humanprinter.cpp

Line 297 in 2b68c90

bsl::sort(queues.begin(), queues.end(), SortPurgeQueueResultByBytesDesc());

And this functor works only for Queue selection, and doesn't work for Error selection.

blazingmq/src/groups/mqb/mqbcmd/mqbcmd_humanprinter.cpp

Lines 50 to 56 in 2b68c90

	struct SortPurgeQueueResultByBytesDesc {
	bool operator()(const PurgeQueueResult& lhs,
	const PurgeQueueResult& rhs) const
	{
	return (lhs.queue().numBytesPurged() > rhs.queue().numBytesPurged());
	}
	};